Munur á milli breytinga „Forverar Sókratesar“

==Heimildir==
*{{enwikiheimild|Pre-Socratic philosophy|14. mars|2006}}
*Barnes, Jonathan, ''The Presocratic Philosophers'' (London: Routledge, 1979/1982).
*Burnet, John, ''Before and After Socrates'' (Cambridge: Cambridge University Press, 1932).
*Burnet, John, ''Early Greek Philosophy'' (New York: Meridian Books, 1957).
*Guthrie, W.K.C., ''A History of Greek Philosophy'' (Cambridge: Cambridge University Press, 1962-1981).
*Kirk, G.S., Raven, J.E. & Schofield, M., ''The Presocratic Philosophers'' (2. útg.) (Cambridge: Cambridge University Press, 1983).
*McKirahan, Richard D., ''Philosophy Before Socrates: An Introduction With Texts and Commentaries'' (Indianapolis: Hackett, 1994).
*Sedley, David (ritstj.), ''The Cambridge Companion to Greek and Roman Philosophy'' (Cambridge: Cambridge University Press, 2003).
*Skirbekk, Gunnar og Nils Gilje, ''Heimspekisaga''. Stefán Hjörleifsson (þýð.). (Reykjavik: Háskólaútgáfan, 1999).
*Taylor, C.C.W. (ritstj.), ''Routledge History of Philosophy. Volume 1: From the Beginning to Plato'' (London: Routledge, 1997).
*Wilbur, J.B. og Allen, H.J., ''The Worlds of the Early Greek Philosophers'' (Buffalo: Prometheus Books, 1979).
 
==Tenglar==